Example usage for javax.xml.xpath XPathExpression evaluate

Introduction

In this page you can find the example usage for javax.xml.xpath XPathExpression evaluate.

Prototype

public Object evaluate(InputSource source, QName returnType) throws XPathExpressionException;

Source Link

Document

Evaluate the compiled XPath expression in the context of the specified InputSource and return the result as the specified type.

Usage

From source file:Main.java

public static Object getNodesListXpath(String XpathS, Node node, String nsuri, String pre, QName returnType)
        throws Exception {
    Object matches = null;/*  w w w  .  j av a  2  s. co  m*/
    // TODO move this to a generic start up method
    System.setProperty("javax.xml.xpath.XPathFactory:" + XPathConstants.DOM_OBJECT_MODEL, XpathFactory);

    XPathFactory xpathFactory = XPathFactory.newInstance(XPathConstants.DOM_OBJECT_MODEL);
    XPath xpath = xpathFactory.newXPath();
    XPathExpression xpe = xpath.compile(XpathS);
    matches = xpe.evaluate(node, returnType);

    return matches;
}

From source file:Main.java

public static Object evaluate(Document document, String expression, QName returnType)
        throws XPathExpressionException {
    XPathExpression xpathexp = getXPathExpression(expression);
    return xpathexp.evaluate(document, returnType);
}

From source file:Main.java

public static Object getNodesListXpath(String XpathS, Node node, String nsuri, String pre, QName returnType)
        throws Exception {
    Object matches = null;/* w  ww  .  j  a  v a  2 s  .  c o  m*/
    // TODO move this to a generic start up method
    //System.setProperty("javax.xml.xpath.XPathFactory:"+ XPathConstants.DOM_OBJECT_MODEL, XpathFactory);

    XPathFactory xpathFactory = XPathFactory.newInstance(XPathConstants.DOM_OBJECT_MODEL);
    XPath xpath = xpathFactory.newXPath();
    XPathExpression xpe = xpath.compile(XpathS);
    matches = xpe.evaluate(node, returnType);

    return matches;
}

From source file:Main.java

/**
 * @param doc/*w w  w  . jav a  2s  .co m*/
 * @param expr
 * @return
 * @throws XPathExpressionException
 */
public static NodeList findNodes(Document doc, XPathExpression expr) throws XPathExpressionException {
    Object evaluate = expr.evaluate(doc, XPathConstants.NODESET);
    NodeList nodes = (NodeList) evaluate;
    return nodes;
}

From source file:Main.java

public static NodeList getElementsByXpath(Document docInput, String xPath) throws XPathExpressionException {
    XPathFactory factory = XPathFactory.newInstance();
    XPath xpath = factory.newXPath();
    XPathExpression expr = xpath.compile(xPath);
    return ((NodeList) expr.evaluate(docInput, XPathConstants.NODESET));
}

From source file:Main.java

public static NodeList executeXpathQuery(Node root, String query) throws TransformerException {

    try {// www.  j  a  v a  2  s.c  om
        XPathFactory factory = XPathFactory.newInstance();
        XPath xpath = factory.newXPath();
        XPathExpression expr = xpath.compile(query);

        Object result = expr.evaluate(root, XPathConstants.NODESET);
        NodeList nodes = (NodeList) result;
        return nodes;
    } catch (XPathExpressionException e) {
        throw new RuntimeException(e);
    }
}

From source file:Main.java

public static Node getXpathExpressionNode(Object xprContext, String xpExpression)
        throws XPathExpressionException {
    XPath xpath = XPathFactory.newInstance().newXPath();

    XPathExpression xpe = xpath.compile(xpExpression);
    Node node = (Node) xpe.evaluate(xprContext, XPathConstants.NODE);
    return node;//from   w  w w. j  av a 2  s . c  om
}

From source file:Main.java

public static String getString(Object node, XPathExpression expression) throws XPathExpressionException {
    return (String) expression.evaluate(node, XPathConstants.STRING);
}

From source file:Main.java

public static List<String> getValueList(Node node, String exprStr) throws XPathExpressionException {
    ArrayList<String> r = new ArrayList<>();
    XPathExpression expr = xpath.compile(exprStr);
    NodeList nodes = (NodeList) expr.evaluate(node, XPathConstants.NODESET);
    for (int i = 0; i < nodes.getLength(); i++) {
        r.add(nodes.item(i).getNodeValue());
    }/*from w  ww .ja v a 2 s. c o  m*/
    return r;
}

From source file:Main.java

public static double getDouble(Object node, XPathExpression expression) throws XPathExpressionException {
    return ((Double) expression.evaluate(node, XPathConstants.NUMBER)).doubleValue();
}